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- W2039937602 abstract "There is evidence that increased blood concentrations of homocysteine may be a risk factor for Alzheimer’s disease. (E)-4-hydroxy-2-nonenal (HNE) is a neurotoxic product of lipid peroxidation that is increased in the ventricular fluid and brains of patients with Alzheimer’s disease. We measured the concentrations of homocysteine, HNE, vitamin B12 and folate in the plasma of 27 patients with Alzheimer’s disease and 25 control subjects. There was a statistically significant increase in the plasma concentration of homocysteine (P < 0.001) and HNE (P < 0.001) in the Alzheimer’s disease patients compared to the control group. There was a significant decrease in the plasma concentration of vitamin B12 (P < 0.001) and folate (P = 0.002) in the Alzheimer’s group compared to the controls. There was a significant positive correlation between the plasma concentrations of homocysteine and HNE in the patients with Alzheimer’s disease (r = 0.661, P < 0.001). A significant negative correlation was found between the plasma concentration of homocysteine and the plasma concentrations of vitamin B12 (r = –0.605, P = 0.0006) and folate (r = 0.586, P = 0.001). We also measured the concentrations of homocysteine, HNE, vitamin B12 and folate in the cerebrospinal fluid (CSF) of 8 patients with Alzhiemer’s disease compared to 6 control subjects. The concentrations of homocysteine (P = 0.032) and HNE (P = 0.001) were significantly higher in the CSF of Alzheimer’s patients than in the control subjects. There were significant positive correlations between the CSF concentrations of homocysteine and HNE (r = 0.924, P = 0.001). There was also a significant positive correlation between the plasma concentration of homocysteine and the CSF concentrations of homocysteine (r = 0.850, P = 0.007) and HNE (r = 0.092, P = 0.002). These results demonstrate that there is a relationship between increased homocysteine concentrations and increased HNE concentrations in Alzheimer’s disease." @default.
- W2039937602 created "2016-06-24" @default.
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- W2039937602 date "2002-06-01" @default.
- W2039937602 modified "2023-10-01" @default.
- W2039937602 title "The effect of increased concentrations of homocysteine on the concentration of (E)-4-hydroxy-2-nonenal in the plasma and cerebrospinal fluid of patients with Alzheimer's disease" @default.
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- W2039937602 doi "https://doi.org/10.1016/s0197-4580(01)00327-x" @default.
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